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Q: What is the constant of proportionality in the equation y 2.5x?

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If the equation is y = kx then the constant of proportionality is k.

The constant of proportionality for y = 0.95x is 0.95

y = c*x3 where c is the constant of proportionality.

The constant of proportionality for y = 0.95x is 0.95

y = cx where c is the constant of proportionality.

y = kx where k is a non-zero constant is an equation of direct proportionality between x and y.

Various options: y is directly proportional to k, with x as the constant of proportionality; y is directly proportional to x, with k as the constant of proportionality; x is inversely proportional to k, with y as the constant of proportionality; x is directly proportional to y, with 1/k as the constant of proportionality; k is directly proportional to y, with 1/x as the constant of proportionality; and k is inversely proportional to x, with y as the constant of proportionality.

It is the speed, which must be maintained at a constant value.

In a table, divide a number in one column by the corresponding number in the other column. In a graph it is the gradient of the line. The equation, for the variables X and Y will be of the form Y = mX and the constant of proportionality is m.

The linear function has the form y=mx+b, which I expect you have heard of. The 'b' is the y-intercept, and the 'm' is the slope. A constant of proportionality is something you have with direct variation, which is where the line goes through (0,0). This happens when 'b' equals zero. So now the equation is just y=mx, and the constant of proportionality is 'm'.

Without an equality sign it cannot be considered to be a straight line equation. But if you mean: y = 25x-3 then the parallel line is y = 25x-61

It is 5.

It is the constant of proportionality.

Two variables, X and Y, are said to be proportional isY = cX for some fixed (constant) c. In that case, c is the constant of proportionality.

If two variables, X and Y, are in direct proportion then Y = c*X for some fixed value c. This value, c, is the constant of proportionality for this relationship.

Direct proportions may be represented by a straight line through the origin, with the equation y = kx. The gradient of the line is the constant of proportionality and is a measure of the change in the "dependent" variable for a unit change in the "independent" variable. In the case of an inverse proportionality, the graph is a hyperbola with the equation y = k/x. The constant of proportionality, k, is a measure of the change in the reciprocal of the "dependent" variable for a unit change in the "independent" variable.

y=x^2 * k k=constant of proportionality OR y/x^2 = k

When there is a direct proportionality y = kx y = 75 k = 15 → 75 = 15x → x = 75/15 = 5

The answer depends on what the constant is: the y-intercept in a linear graph, constant of proportionality, constant of integration, physical [universal] constant.

Suppose y = c*x where c is the constant of proportionality. x = 3 and y = 30 so 30 = c*3 which implies that c = 10. So the equation is y = 10*x

If two variables are in direct relationship then the ratio of the two variables is known as the constant of proportion between them. In algebraic form, if X and Y are the two variables, then direct proportionality implies that Y = cX and c is the constant of proportionality.

Substitution method: from first equation y = 5x - 8. In the second equation this gives 25x - 5(5x - 8) = 32 ie 25x - 25x + 40 = 32 ie 40 = 32 which is not possible, so the system has no solution. Multiplication method: first equation times 5 gives 25x - 5y = 40, but second equation gives 32 as the value of the identical expression. No solution.

Simplify 5y = 25x - 15 by dividing each term by 5 to produce y = 5x - 3. By definition, the y-intercept of this equation is the value of y when x = 0, in this instance -3.

y = cx where c is some non-zero constant of proportionality. Equivalently, x = ky where k (= 1/c) is a constant of proportionality. The graph of y against x is a straight line through the origin, with slope c.

If we assume a constant inverse relationship then we can start with the equation y = c/x where c is the constant of proportionality. Plugging in the known values of x = 7 and y = 5 we determine that c = 35. We now have the equation of y = 35/x. Plugging in 4 for x we see that y = 35/4 = 8.75.

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